The “Dual-Tone” 1 x 12 combo amplifier is the undeniable rock star of the mid 60’s Supro amplifier lineup. Vintage 1624T amps have been sought-after for decades because they embody the most desirable aspects of the Supro sound. As the Dual-Tone’s volume knob is turned beyond noon, a fat and compressed clean tone evolves into an immediately recognizable grind that remains articulate and listenable even when turned up to full blast. This 24-Watt, 1 x 12 tube combo can easily be driven to glorious saturation at a manageable gigging volume while retaining exceptional clarity and bandwidth, at any level of gain. This amp’s unique mojo is largely defined by the use of 6973 power tubes in the amplifier’s output stage. These robust 9-pin tubes were employed extensively in the mid- and low-power Supro amps made 50 years ago. 6973 tubes look like EL84s but they deliver a distinctly American voice that has been missing from the world of tube amplifiers for far too long. The Dual-Tone’s linkable channels each sport volume and tone controls as well as a shared tremolo circuit. Plugging into IN 1+2 links both preamp channels in parallel for double the input signal and double the gain. This clever topology lets you hit the power amp as hard as necessary and even allows “channel switching” in its purest form, using a simple A/B switch. The 1964 reissue Supro Dual-Tone’s vintage-correct, lightweight cabinet—combined with our breathtaking custom 12” Supro speaker—kicks out surprisingly plump low end with all the detailed midrange and high end articulation that defines the Supro tone players have been chasing for decades. Loud enough to gig with a band, yet easy to haul around town, the Supro Dual-Tone is the perfect small club and recording amplifier. This amp has the long lost tone, so Ramble On down to a Supro dealer near you and Bring It on Home.
